What Is the Best Way to Understand General Relativity?

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Discussion Overview

The discussion revolves around understanding General Relativity, with participants exploring visual representations of the theory and questioning the implications of gravity on measurements such as the meter. The conversation includes attempts to clarify concepts and the appropriateness of forum sections for such inquiries.

Discussion Character

  • Exploratory
  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • One participant presents a visual representation of General Relativity, suggesting that a meter may vary in size depending on gravitational strength.
  • Another participant questions the premise that a meter could "shrink" under gravity and wonders if it would "grow" if gravity were inverted, as well as the implications of measuring a meter on Earth versus in space.
  • A different participant asserts that a meter is a constant measurement and suggests that the visual representation may not accurately convey the theory's principles.
  • One participant expresses a desire to understand why the speed of light is perceived to change while remaining constant, referencing a link that discusses the relationship between light speed and frame of reference.
  • Concerns are raised about the appropriateness of the forum for discussing personal theories versus seeking understanding of established theories.
  • Some participants express skepticism about the motivations behind the inquiry, suggesting it may be an attempt to promote a personal theory rather than a genuine quest for understanding.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the accuracy of the visual representation or the implications of gravity on measurements. There is disagreement regarding the appropriateness of the forum for the discussion, with some suggesting it is not suitable for personal theories.

Contextual Notes

Participants express various assumptions about the nature of measurements in different gravitational fields and the interpretation of visual aids. There is also a noted tension regarding the distinction between seeking understanding and proposing unsubstantiated theories.

OneEyed
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Hello, is this a fairly accurate representation of General Relativity? I'm just trying to make sure I fully understand the theory, before I ask my silly questions.

Edit: I created this picture to help me visualize General Relativity better. As I understand it, 1 meter is a different size at different strengths of gravity.
 
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I was always under the impression a meter is a meter.

Based on the whole "meter shrinking as gravity increases" premise you have above, does this mean if we could invert gravity a meter would grow?

Also, does it mean a meter on Earth is shorter than in space?

I'm curious now.
 
OneEyed said:
I'm just trying to make sure I fully understand the theory, before I ask my silly questions.
Asking about a silly picture isn't the best way to do that. :wink:

A meter is a meter. Maybe there is a way to make sense of what the picture is saying, but I don't want to spend any time decoding stuff like that. I suggest that you start by reading some non-mathematical account of general relativity. The best one is "Black holes and time warps: Einstein's outrageous legacy", by Kip Thorne.
 
Fredrik said:
Asking about a silly picture isn't the best way to do that. :wink:

A meter is a meter. Maybe there is a way to make sense of what the picture is saying, but I don't want to spend any time decoding stuff like that. I suggest that you start by reading some non-mathematical account of general relativity. The best one is "Black holes and time warps: Einstein's outrageous legacy", by Kip Thorne.

I created the picture. I wanted to understand why light speed is always constant, but yet as an observer we can see it change speeds. This link, http://www.xs4all.nl/~johanw/PhysFAQ/Relativity/SpeedOfLight/speed_of_light.html helped me understand that. It's because the distance light travels is shrunk. So relative to how compressed 2 frames of reference are, you could theoretically see faster than light, but never experience it at your location.
 
OneEyed said:
Hello, is this a fairly accurate representation of General Relativity? I'm just trying to make sure I fully understand the theory, before I ask my silly questions.

Is there a reason why you are asking this in the S&D forum and not in the Relativity forum?

Note that if you are trying to air out your own personal theory, it doesn't grant you any more freedom to do that in S&D forum.

Zz.
 
ZapperZ said:
Is there a reason why you are asking this in the S&D forum and not in the Relativity forum?

Note that if you are trying to air out your own personal theory, it doesn't grant you any more freedom to do that in S&D forum.

Zz.

I'm not trying to debunk the theory, I'm trying to understand it, last time I got an infraction when posting in Relativity for being a crackpot.
 
And I'd say you're not far off another one now if this is just a personal theory of some description.
 
OneEyed said:
I'm not trying to debunk the theory, I'm trying to understand it, last time I got an infraction when posting in Relativity for being a crackpot.

So you think you can hide in here? The PF Rules are global and applies the same way in this forum as well. If you tried something that would have resulted in an infraction in the Relativity forum, you'll get that same infraction here as well!

And btw, there is a difference between asking question to understand something, versus making unsubstantiated statements. Guess which one you did last time?

This is the wrong forum for this topic.Zz.
 

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